SWMBO decided we should throw out the gas water heater and get an
electric heater "so we don't have to light the pilot" This was a bolt
out of the blue. In the process, I looked at tankless electric water
heaters. The point of use ones seem to be between 1.0 and 1.3 GPM,
while "whole house" run 3.0 to 3.6 GPH. The max usage would probably be
2 people taking showers while someone washes dishes. Two people most
of the time, and a max of 6. The guy at the plmg supply said we'd not
be happy with the tankless electric. The current 30 gal heater has
always kept up, but we generally staggered showers so both did not use
water at the same time.
is 3 gpm realistic for a normal household? Will 3 gpm rating really
keep up with 2 showers in the real world?
I can buy 3 Point of use 1.3 gpm heaters for the price of one 3 gpm
whole house heater. I had thought of using 3 of these in a parallel
setup to have some redundancy (central, not POU) Would this work as
well as a single heater in the real world?
Would I be better off convincing her to leave the gas 30 gal heater be?
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